PREN ISO 14644-8 : DRAFT 2011

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Demonstration of compliance
Annex A (informative) - Parameters for consideration
Annex B (informative) - Typical contaminants
Annex C (informative) - Typical methods of measurement
Annex D (informative) - Consideration of specific
        requirements for separative devices
Bibliography

Includes the classification of air chemical cleanliness (ACC) in cleanrooms and associated controlled environments, in terms of airborne concentrations of specific chemical substances (individual, group or category) and provides a protocol to include test methods, analysis and time-weighted factors within the specification for classification.